June weather forecastDecatur, TN

June

Weather in June

June, the first month of the summer in Decatur, is still a warm month, with an average temperature ranging between min 63.1°F (17.3°C) and max 85.1°F (29.5°C).

Temperature

June's arrival coincides with a subtle temperature rise, moving from May's 77.7°F (25.4°C) to a still warm 85.1°F (29.5°C). Decatur records a significant temperature drop in June nights, lowering to an average of 63.1°F (17.3°C).

Heat index

In June, the average heat index is estimated at a fiery hot 95°F (35°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly meaningful for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

June, August, October and November, with an average relative humidity of 75%, are the least humid months.

Rainfall

In Decatur, in June, during 16.8 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Decatur, during the entire year, the rain falls for 171.8 days and collects up to 41.81" (1062mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

June has the longest days of the year, with an average of 14h and 30min of daylight.
On the first day of the month, sunrise is at 6:24 am and sunset at 8:49 pm. On the last day of June, sunrise is at 6:27 am and sunset at 8:58 pm EDT.

Sunshine

The months with the most sunshine are June and July, with an average of 10.4h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In June, a regular UV index of 6 translates into these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

June temperatures in Decatur, Tennessee, vary between a high-temperature of 85.1°F (29.5°C) and a low-temperature of 63.1°F (17.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in June is estimated at 95°F (35°C).

June, August, October and November, with an average relative humidity of 75%, are the least humid months in Decatur.

In Decatur, Tennessee, the average relative humidity in June is 75%.

In Decatur, Tennessee, in June, it is raining for 16.8 days, with typically 3.39" (86mm) of accumulated precipitation.

In Decatur, Tennessee, snow does not fall in May through October.

The month with the longest days is June, with an average of 14h and 30min of daylight.

The average day length in June is 14h and 31min.

In June, on the first day of the month, sunrise is at 6:24 am and sunset at 8:49 pm. On the last day of the month, in Decatur, Tennessee, sunrise is at 6:27 am and sunset at 8:58 pm EDT.

June and July, with an average of 10.4h of sunshine, are months with the most sunshine in Decatur.

In Decatur, Tennessee, the average sunshine duration in June is 10.4h.

The months with the highest UV index in Decatur, Tennessee, are May through August, with an average maximum UV index of 6.

In June, the average daily maximum UV index in Decatur is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Decatur, TN

  • Average high temperature in June: 85.1°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in June: 63.1°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in June
Decatur, TN

  • Average pressure in June: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in June
Decatur, TN

  • Average wind speed in June: 4.5mph

The windiest months (with the highest average wind speed) are February, March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

Average humidity in June
Decatur, TN

  • Average humidity in June: 75%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August, October and November (75%).

Average rainfall in June
Decatur, TN

  • Average rainfall in June: 3.39"

The wettest months (with the highest rainfall) are July and December (4.29").
The driest month (with the least rainfall) is September (2.32").

Average rainfall days in June
Decatur, TN

  • Average rainfall days in June: 16.8 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in June
Decatur, TN

  • Average snowfall in June: 0"

The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Decatur, TN

  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Decatur, TN

  • Average daylight in June: 14h and 30min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in June: 10h and 24min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in June
Decatur, TN

  • Average sunshine days in June: 11.3 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (10.2 days).

Average UV index in June
Decatur, TN

  • Average UV index in June: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in June
Decatur, TN

  • Average cloud cover in June: 30

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in June
Decatur, TN

  • Average visibility in June: 6mi

The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).